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Geometry Study Guide

Geometry Vocabulary

similar same shape but not necessarily the same size
congruent exactly the same shape and size
triangle polygon with 3 sides
kite a quadrilateral with two distinct pairs of adjacent congruent sides
trapezoid a quadrilateral with exactly one pair of parallel sides
rhombus a parallelogram with four congruent sides
square a rectangle with four congruent sides
rectangle a parallelogram with four right angles
parallelogram a quadrilateral with two pairs of parallel sides
quadrilateral a polygon with four sides
acute triangle a triangle with 3 angles that are less than 90˚
obtuse triangle a triangle with one angle greater than 90˚ and 2 angles less than 90˚
right triangle a triangle with one 90˚ angle and 2 angles less than 90˚
equilateral triangle a triangle with 3 congruent sides
isosceles triangle a triangle with 2 congruent sides
scalene triangle a triangle with 0 congruent sides
Created by: janyoung